1 /* 2 BlueZ - Bluetooth protocol stack for Linux 3 Copyright (c) 2000-2001, 2010, Code Aurora Forum. All rights reserved. 4 5 Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com> 6 7 This program is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License version 2 as 9 published by the Free Software Foundation; 10 11 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 12 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 13 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. 14 IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY 15 CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES 16 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 17 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 18 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 19 20 ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS, 21 COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS 22 SOFTWARE IS DISCLAIMED. 23 */ 24 25 #ifndef __HCI_CORE_H 26 #define __HCI_CORE_H 27 28 #include <net/bluetooth/hci.h> 29 #include <net/bluetooth/hci_sock.h> 30 31 /* HCI priority */ 32 #define HCI_PRIO_MAX 7 33 34 /* HCI Core structures */ 35 struct inquiry_data { 36 bdaddr_t bdaddr; 37 __u8 pscan_rep_mode; 38 __u8 pscan_period_mode; 39 __u8 pscan_mode; 40 __u8 dev_class[3]; 41 __le16 clock_offset; 42 __s8 rssi; 43 __u8 ssp_mode; 44 }; 45 46 struct inquiry_entry { 47 struct list_head all; /* inq_cache.all */ 48 struct list_head list; /* unknown or resolve */ 49 enum { 50 NAME_NOT_KNOWN, 51 NAME_NEEDED, 52 NAME_PENDING, 53 NAME_KNOWN, 54 } name_state; 55 __u32 timestamp; 56 struct inquiry_data data; 57 }; 58 59 struct discovery_state { 60 int type; 61 enum { 62 DISCOVERY_STOPPED, 63 DISCOVERY_STARTING, 64 DISCOVERY_FINDING, 65 DISCOVERY_RESOLVING, 66 DISCOVERY_STOPPING, 67 } state; 68 struct list_head all; /* All devices found during inquiry */ 69 struct list_head unknown; /* Name state not known */ 70 struct list_head resolve; /* Name needs to be resolved */ 71 __u32 timestamp; 72 bdaddr_t last_adv_addr; 73 u8 last_adv_addr_type; 74 s8 last_adv_rssi; 75 u32 last_adv_flags; 76 u8 last_adv_data[HCI_MAX_AD_LENGTH]; 77 u8 last_adv_data_len; 78 }; 79 80 struct hci_conn_hash { 81 struct list_head list; 82 unsigned int acl_num; 83 unsigned int amp_num; 84 unsigned int sco_num; 85 unsigned int le_num; 86 unsigned int le_num_slave; 87 }; 88 89 struct bdaddr_list { 90 struct list_head list; 91 bdaddr_t bdaddr; 92 u8 bdaddr_type; 93 }; 94 95 struct bt_uuid { 96 struct list_head list; 97 u8 uuid[16]; 98 u8 size; 99 u8 svc_hint; 100 }; 101 102 struct smp_csrk { 103 bdaddr_t bdaddr; 104 u8 bdaddr_type; 105 u8 master; 106 u8 val[16]; 107 }; 108 109 struct smp_ltk { 110 struct list_head list; 111 bdaddr_t bdaddr; 112 u8 bdaddr_type; 113 u8 authenticated; 114 u8 type; 115 u8 enc_size; 116 __le16 ediv; 117 __le64 rand; 118 u8 val[16]; 119 }; 120 121 struct smp_irk { 122 struct list_head list; 123 bdaddr_t rpa; 124 bdaddr_t bdaddr; 125 u8 addr_type; 126 u8 val[16]; 127 }; 128 129 struct link_key { 130 struct list_head list; 131 bdaddr_t bdaddr; 132 u8 type; 133 u8 val[HCI_LINK_KEY_SIZE]; 134 u8 pin_len; 135 }; 136 137 struct oob_data { 138 struct list_head list; 139 bdaddr_t bdaddr; 140 u8 hash192[16]; 141 u8 randomizer192[16]; 142 u8 hash256[16]; 143 u8 randomizer256[16]; 144 }; 145 146 #define HCI_MAX_SHORT_NAME_LENGTH 10 147 148 /* Default LE RPA expiry time, 15 minutes */ 149 #define HCI_DEFAULT_RPA_TIMEOUT (15 * 60) 150 151 /* Default min/max age of connection information (1s/3s) */ 152 #define DEFAULT_CONN_INFO_MIN_AGE 1000 153 #define DEFAULT_CONN_INFO_MAX_AGE 3000 154 155 struct amp_assoc { 156 __u16 len; 157 __u16 offset; 158 __u16 rem_len; 159 __u16 len_so_far; 160 __u8 data[HCI_MAX_AMP_ASSOC_SIZE]; 161 }; 162 163 #define HCI_MAX_PAGES 3 164 165 #define NUM_REASSEMBLY 4 166 struct hci_dev { 167 struct list_head list; 168 struct mutex lock; 169 170 char name[8]; 171 unsigned long flags; 172 __u16 id; 173 __u8 bus; 174 __u8 dev_type; 175 bdaddr_t bdaddr; 176 bdaddr_t setup_addr; 177 bdaddr_t public_addr; 178 bdaddr_t random_addr; 179 bdaddr_t static_addr; 180 __u8 adv_addr_type; 181 __u8 dev_name[HCI_MAX_NAME_LENGTH]; 182 __u8 short_name[HCI_MAX_SHORT_NAME_LENGTH]; 183 __u8 eir[HCI_MAX_EIR_LENGTH]; 184 __u8 dev_class[3]; 185 __u8 major_class; 186 __u8 minor_class; 187 __u8 max_page; 188 __u8 features[HCI_MAX_PAGES][8]; 189 __u8 le_features[8]; 190 __u8 le_white_list_size; 191 __u8 le_states[8]; 192 __u8 commands[64]; 193 __u8 hci_ver; 194 __u16 hci_rev; 195 __u8 lmp_ver; 196 __u16 manufacturer; 197 __u16 lmp_subver; 198 __u16 voice_setting; 199 __u8 num_iac; 200 __u8 io_capability; 201 __s8 inq_tx_power; 202 __u16 page_scan_interval; 203 __u16 page_scan_window; 204 __u8 page_scan_type; 205 __u8 le_adv_channel_map; 206 __u16 le_adv_min_interval; 207 __u16 le_adv_max_interval; 208 __u8 le_scan_type; 209 __u16 le_scan_interval; 210 __u16 le_scan_window; 211 __u16 le_conn_min_interval; 212 __u16 le_conn_max_interval; 213 __u16 le_conn_latency; 214 __u16 le_supv_timeout; 215 __u16 discov_interleaved_timeout; 216 __u16 conn_info_min_age; 217 __u16 conn_info_max_age; 218 __u8 ssp_debug_mode; 219 __u32 clock; 220 221 __u16 devid_source; 222 __u16 devid_vendor; 223 __u16 devid_product; 224 __u16 devid_version; 225 226 __u16 pkt_type; 227 __u16 esco_type; 228 __u16 link_policy; 229 __u16 link_mode; 230 231 __u32 idle_timeout; 232 __u16 sniff_min_interval; 233 __u16 sniff_max_interval; 234 235 __u8 amp_status; 236 __u32 amp_total_bw; 237 __u32 amp_max_bw; 238 __u32 amp_min_latency; 239 __u32 amp_max_pdu; 240 __u8 amp_type; 241 __u16 amp_pal_cap; 242 __u16 amp_assoc_size; 243 __u32 amp_max_flush_to; 244 __u32 amp_be_flush_to; 245 246 struct amp_assoc loc_assoc; 247 248 __u8 flow_ctl_mode; 249 250 unsigned int auto_accept_delay; 251 252 unsigned long quirks; 253 254 atomic_t cmd_cnt; 255 unsigned int acl_cnt; 256 unsigned int sco_cnt; 257 unsigned int le_cnt; 258 259 unsigned int acl_mtu; 260 unsigned int sco_mtu; 261 unsigned int le_mtu; 262 unsigned int acl_pkts; 263 unsigned int sco_pkts; 264 unsigned int le_pkts; 265 266 __u16 block_len; 267 __u16 block_mtu; 268 __u16 num_blocks; 269 __u16 block_cnt; 270 271 unsigned long acl_last_tx; 272 unsigned long sco_last_tx; 273 unsigned long le_last_tx; 274 275 struct workqueue_struct *workqueue; 276 struct workqueue_struct *req_workqueue; 277 278 struct work_struct power_on; 279 struct delayed_work power_off; 280 281 __u16 discov_timeout; 282 struct delayed_work discov_off; 283 284 struct delayed_work service_cache; 285 286 struct delayed_work cmd_timer; 287 288 struct work_struct rx_work; 289 struct work_struct cmd_work; 290 struct work_struct tx_work; 291 292 struct sk_buff_head rx_q; 293 struct sk_buff_head raw_q; 294 struct sk_buff_head cmd_q; 295 296 struct sk_buff *recv_evt; 297 struct sk_buff *sent_cmd; 298 struct sk_buff *reassembly[NUM_REASSEMBLY]; 299 300 struct mutex req_lock; 301 wait_queue_head_t req_wait_q; 302 __u32 req_status; 303 __u32 req_result; 304 305 struct crypto_blkcipher *tfm_aes; 306 307 struct discovery_state discovery; 308 struct hci_conn_hash conn_hash; 309 310 struct list_head mgmt_pending; 311 struct list_head blacklist; 312 struct list_head whitelist; 313 struct list_head uuids; 314 struct list_head link_keys; 315 struct list_head long_term_keys; 316 struct list_head identity_resolving_keys; 317 struct list_head remote_oob_data; 318 struct list_head le_white_list; 319 struct list_head le_conn_params; 320 struct list_head pend_le_conns; 321 struct list_head pend_le_reports; 322 323 struct hci_dev_stats stat; 324 325 atomic_t promisc; 326 327 struct dentry *debugfs; 328 329 struct device dev; 330 331 struct rfkill *rfkill; 332 333 unsigned long dbg_flags; 334 unsigned long dev_flags; 335 336 struct delayed_work le_scan_disable; 337 338 __s8 adv_tx_power; 339 __u8 adv_data[HCI_MAX_AD_LENGTH]; 340 __u8 adv_data_len; 341 __u8 scan_rsp_data[HCI_MAX_AD_LENGTH]; 342 __u8 scan_rsp_data_len; 343 344 __u8 irk[16]; 345 __u32 rpa_timeout; 346 struct delayed_work rpa_expired; 347 bdaddr_t rpa; 348 349 int (*open)(struct hci_dev *hdev); 350 int (*close)(struct hci_dev *hdev); 351 int (*flush)(struct hci_dev *hdev); 352 int (*setup)(struct hci_dev *hdev); 353 int (*send)(struct hci_dev *hdev, struct sk_buff *skb); 354 void (*notify)(struct hci_dev *hdev, unsigned int evt); 355 int (*set_bdaddr)(struct hci_dev *hdev, const bdaddr_t *bdaddr); 356 }; 357 358 #define HCI_PHY_HANDLE(handle) (handle & 0xff) 359 360 struct hci_conn { 361 struct list_head list; 362 363 atomic_t refcnt; 364 365 bdaddr_t dst; 366 __u8 dst_type; 367 bdaddr_t src; 368 __u8 src_type; 369 bdaddr_t init_addr; 370 __u8 init_addr_type; 371 bdaddr_t resp_addr; 372 __u8 resp_addr_type; 373 __u16 handle; 374 __u16 state; 375 __u8 mode; 376 __u8 type; 377 __u8 role; 378 bool out; 379 __u8 attempt; 380 __u8 dev_class[3]; 381 __u8 features[HCI_MAX_PAGES][8]; 382 __u16 pkt_type; 383 __u16 link_policy; 384 __u8 key_type; 385 __u8 auth_type; 386 __u8 sec_level; 387 __u8 pending_sec_level; 388 __u8 pin_length; 389 __u8 enc_key_size; 390 __u8 io_capability; 391 __u32 passkey_notify; 392 __u8 passkey_entered; 393 __u16 disc_timeout; 394 __u16 conn_timeout; 395 __u16 setting; 396 __u16 le_conn_min_interval; 397 __u16 le_conn_max_interval; 398 __u16 le_conn_interval; 399 __u16 le_conn_latency; 400 __u16 le_supv_timeout; 401 __s8 rssi; 402 __s8 tx_power; 403 __s8 max_tx_power; 404 unsigned long flags; 405 406 __u32 clock; 407 __u16 clock_accuracy; 408 409 unsigned long conn_info_timestamp; 410 411 __u8 remote_cap; 412 __u8 remote_auth; 413 __u8 remote_id; 414 415 unsigned int sent; 416 417 struct sk_buff_head data_q; 418 struct list_head chan_list; 419 420 struct delayed_work disc_work; 421 struct delayed_work auto_accept_work; 422 struct delayed_work idle_work; 423 struct delayed_work le_conn_timeout; 424 425 struct device dev; 426 427 struct hci_dev *hdev; 428 void *l2cap_data; 429 void *sco_data; 430 struct amp_mgr *amp_mgr; 431 432 struct hci_conn *link; 433 434 void (*connect_cfm_cb) (struct hci_conn *conn, u8 status); 435 void (*security_cfm_cb) (struct hci_conn *conn, u8 status); 436 void (*disconn_cfm_cb) (struct hci_conn *conn, u8 reason); 437 }; 438 439 struct hci_chan { 440 struct list_head list; 441 __u16 handle; 442 struct hci_conn *conn; 443 struct sk_buff_head data_q; 444 unsigned int sent; 445 __u8 state; 446 }; 447 448 struct hci_conn_params { 449 struct list_head list; 450 struct list_head action; 451 452 bdaddr_t addr; 453 u8 addr_type; 454 455 u16 conn_min_interval; 456 u16 conn_max_interval; 457 u16 conn_latency; 458 u16 supervision_timeout; 459 460 enum { 461 HCI_AUTO_CONN_DISABLED, 462 HCI_AUTO_CONN_REPORT, 463 HCI_AUTO_CONN_DIRECT, 464 HCI_AUTO_CONN_ALWAYS, 465 HCI_AUTO_CONN_LINK_LOSS, 466 } auto_connect; 467 }; 468 469 extern struct list_head hci_dev_list; 470 extern struct list_head hci_cb_list; 471 extern rwlock_t hci_dev_list_lock; 472 extern rwlock_t hci_cb_list_lock; 473 474 /* ----- HCI interface to upper protocols ----- */ 475 int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr); 476 void l2cap_connect_cfm(struct hci_conn *hcon, u8 status); 477 int l2cap_disconn_ind(struct hci_conn *hcon); 478 void l2cap_disconn_cfm(struct hci_conn *hcon, u8 reason); 479 int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt); 480 int l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags); 481 482 int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags); 483 void sco_connect_cfm(struct hci_conn *hcon, __u8 status); 484 void sco_disconn_cfm(struct hci_conn *hcon, __u8 reason); 485 int sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb); 486 487 /* ----- Inquiry cache ----- */ 488 #define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */ 489 #define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */ 490 491 static inline void discovery_init(struct hci_dev *hdev) 492 { 493 hdev->discovery.state = DISCOVERY_STOPPED; 494 INIT_LIST_HEAD(&hdev->discovery.all); 495 INIT_LIST_HEAD(&hdev->discovery.unknown); 496 INIT_LIST_HEAD(&hdev->discovery.resolve); 497 } 498 499 bool hci_discovery_active(struct hci_dev *hdev); 500 501 void hci_discovery_set_state(struct hci_dev *hdev, int state); 502 503 static inline int inquiry_cache_empty(struct hci_dev *hdev) 504 { 505 return list_empty(&hdev->discovery.all); 506 } 507 508 static inline long inquiry_cache_age(struct hci_dev *hdev) 509 { 510 struct discovery_state *c = &hdev->discovery; 511 return jiffies - c->timestamp; 512 } 513 514 static inline long inquiry_entry_age(struct inquiry_entry *e) 515 { 516 return jiffies - e->timestamp; 517 } 518 519 struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev, 520 bdaddr_t *bdaddr); 521 struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev, 522 bdaddr_t *bdaddr); 523 struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev, 524 bdaddr_t *bdaddr, 525 int state); 526 void hci_inquiry_cache_update_resolve(struct hci_dev *hdev, 527 struct inquiry_entry *ie); 528 u32 hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data, 529 bool name_known); 530 void hci_inquiry_cache_flush(struct hci_dev *hdev); 531 532 /* ----- HCI Connections ----- */ 533 enum { 534 HCI_CONN_AUTH_PEND, 535 HCI_CONN_REAUTH_PEND, 536 HCI_CONN_ENCRYPT_PEND, 537 HCI_CONN_RSWITCH_PEND, 538 HCI_CONN_MODE_CHANGE_PEND, 539 HCI_CONN_SCO_SETUP_PEND, 540 HCI_CONN_LE_SMP_PEND, 541 HCI_CONN_MGMT_CONNECTED, 542 HCI_CONN_SSP_ENABLED, 543 HCI_CONN_SC_ENABLED, 544 HCI_CONN_AES_CCM, 545 HCI_CONN_POWER_SAVE, 546 HCI_CONN_REMOTE_OOB, 547 HCI_CONN_FLUSH_KEY, 548 HCI_CONN_ENCRYPT, 549 HCI_CONN_AUTH, 550 HCI_CONN_SECURE, 551 HCI_CONN_FIPS, 552 HCI_CONN_STK_ENCRYPT, 553 HCI_CONN_AUTH_INITIATOR, 554 }; 555 556 static inline bool hci_conn_ssp_enabled(struct hci_conn *conn) 557 { 558 struct hci_dev *hdev = conn->hdev; 559 return test_bit(HCI_SSP_ENABLED, &hdev->dev_flags) && 560 test_bit(HCI_CONN_SSP_ENABLED, &conn->flags); 561 } 562 563 static inline bool hci_conn_sc_enabled(struct hci_conn *conn) 564 { 565 struct hci_dev *hdev = conn->hdev; 566 return test_bit(HCI_SC_ENABLED, &hdev->dev_flags) && 567 test_bit(HCI_CONN_SC_ENABLED, &conn->flags); 568 } 569 570 static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c) 571 { 572 struct hci_conn_hash *h = &hdev->conn_hash; 573 list_add_rcu(&c->list, &h->list); 574 switch (c->type) { 575 case ACL_LINK: 576 h->acl_num++; 577 break; 578 case AMP_LINK: 579 h->amp_num++; 580 break; 581 case LE_LINK: 582 h->le_num++; 583 if (c->role == HCI_ROLE_SLAVE) 584 h->le_num_slave++; 585 break; 586 case SCO_LINK: 587 case ESCO_LINK: 588 h->sco_num++; 589 break; 590 } 591 } 592 593 static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c) 594 { 595 struct hci_conn_hash *h = &hdev->conn_hash; 596 597 list_del_rcu(&c->list); 598 synchronize_rcu(); 599 600 switch (c->type) { 601 case ACL_LINK: 602 h->acl_num--; 603 break; 604 case AMP_LINK: 605 h->amp_num--; 606 break; 607 case LE_LINK: 608 h->le_num--; 609 if (c->role == HCI_ROLE_SLAVE) 610 h->le_num_slave--; 611 break; 612 case SCO_LINK: 613 case ESCO_LINK: 614 h->sco_num--; 615 break; 616 } 617 } 618 619 static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type) 620 { 621 struct hci_conn_hash *h = &hdev->conn_hash; 622 switch (type) { 623 case ACL_LINK: 624 return h->acl_num; 625 case AMP_LINK: 626 return h->amp_num; 627 case LE_LINK: 628 return h->le_num; 629 case SCO_LINK: 630 case ESCO_LINK: 631 return h->sco_num; 632 default: 633 return 0; 634 } 635 } 636 637 static inline unsigned int hci_conn_count(struct hci_dev *hdev) 638 { 639 struct hci_conn_hash *c = &hdev->conn_hash; 640 641 return c->acl_num + c->amp_num + c->sco_num + c->le_num; 642 } 643 644 static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev, 645 __u16 handle) 646 { 647 struct hci_conn_hash *h = &hdev->conn_hash; 648 struct hci_conn *c; 649 650 rcu_read_lock(); 651 652 list_for_each_entry_rcu(c, &h->list, list) { 653 if (c->handle == handle) { 654 rcu_read_unlock(); 655 return c; 656 } 657 } 658 rcu_read_unlock(); 659 660 return NULL; 661 } 662 663 static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev, 664 __u8 type, bdaddr_t *ba) 665 { 666 struct hci_conn_hash *h = &hdev->conn_hash; 667 struct hci_conn *c; 668 669 rcu_read_lock(); 670 671 list_for_each_entry_rcu(c, &h->list, list) { 672 if (c->type == type && !bacmp(&c->dst, ba)) { 673 rcu_read_unlock(); 674 return c; 675 } 676 } 677 678 rcu_read_unlock(); 679 680 return NULL; 681 } 682 683 static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev, 684 __u8 type, __u16 state) 685 { 686 struct hci_conn_hash *h = &hdev->conn_hash; 687 struct hci_conn *c; 688 689 rcu_read_lock(); 690 691 list_for_each_entry_rcu(c, &h->list, list) { 692 if (c->type == type && c->state == state) { 693 rcu_read_unlock(); 694 return c; 695 } 696 } 697 698 rcu_read_unlock(); 699 700 return NULL; 701 } 702 703 void hci_disconnect(struct hci_conn *conn, __u8 reason); 704 bool hci_setup_sync(struct hci_conn *conn, __u16 handle); 705 void hci_sco_setup(struct hci_conn *conn, __u8 status); 706 707 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst, 708 u8 role); 709 int hci_conn_del(struct hci_conn *conn); 710 void hci_conn_hash_flush(struct hci_dev *hdev); 711 void hci_conn_check_pending(struct hci_dev *hdev); 712 713 struct hci_chan *hci_chan_create(struct hci_conn *conn); 714 void hci_chan_del(struct hci_chan *chan); 715 void hci_chan_list_flush(struct hci_conn *conn); 716 struct hci_chan *hci_chan_lookup_handle(struct hci_dev *hdev, __u16 handle); 717 718 struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst, 719 u8 dst_type, u8 sec_level, u16 conn_timeout, 720 u8 role); 721 struct hci_conn *hci_connect_acl(struct hci_dev *hdev, bdaddr_t *dst, 722 u8 sec_level, u8 auth_type); 723 struct hci_conn *hci_connect_sco(struct hci_dev *hdev, int type, bdaddr_t *dst, 724 __u16 setting); 725 int hci_conn_check_link_mode(struct hci_conn *conn); 726 int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level); 727 int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type, 728 bool initiator); 729 int hci_conn_change_link_key(struct hci_conn *conn); 730 int hci_conn_switch_role(struct hci_conn *conn, __u8 role); 731 732 void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active); 733 734 void hci_le_conn_failed(struct hci_conn *conn, u8 status); 735 736 /* 737 * hci_conn_get() and hci_conn_put() are used to control the life-time of an 738 * "hci_conn" object. They do not guarantee that the hci_conn object is running, 739 * working or anything else. They just guarantee that the object is available 740 * and can be dereferenced. So you can use its locks, local variables and any 741 * other constant data. 742 * Before accessing runtime data, you _must_ lock the object and then check that 743 * it is still running. As soon as you release the locks, the connection might 744 * get dropped, though. 745 * 746 * On the other hand, hci_conn_hold() and hci_conn_drop() are used to control 747 * how long the underlying connection is held. So every channel that runs on the 748 * hci_conn object calls this to prevent the connection from disappearing. As 749 * long as you hold a device, you must also guarantee that you have a valid 750 * reference to the device via hci_conn_get() (or the initial reference from 751 * hci_conn_add()). 752 * The hold()/drop() ref-count is known to drop below 0 sometimes, which doesn't 753 * break because nobody cares for that. But this means, we cannot use 754 * _get()/_drop() in it, but require the caller to have a valid ref (FIXME). 755 */ 756 757 static inline void hci_conn_get(struct hci_conn *conn) 758 { 759 get_device(&conn->dev); 760 } 761 762 static inline void hci_conn_put(struct hci_conn *conn) 763 { 764 put_device(&conn->dev); 765 } 766 767 static inline void hci_conn_hold(struct hci_conn *conn) 768 { 769 BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt)); 770 771 atomic_inc(&conn->refcnt); 772 cancel_delayed_work(&conn->disc_work); 773 } 774 775 static inline void hci_conn_drop(struct hci_conn *conn) 776 { 777 BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt)); 778 779 if (atomic_dec_and_test(&conn->refcnt)) { 780 unsigned long timeo; 781 782 switch (conn->type) { 783 case ACL_LINK: 784 case LE_LINK: 785 cancel_delayed_work(&conn->idle_work); 786 if (conn->state == BT_CONNECTED) { 787 timeo = conn->disc_timeout; 788 if (!conn->out) 789 timeo *= 2; 790 } else { 791 timeo = msecs_to_jiffies(10); 792 } 793 break; 794 795 case AMP_LINK: 796 timeo = conn->disc_timeout; 797 break; 798 799 default: 800 timeo = msecs_to_jiffies(10); 801 break; 802 } 803 804 cancel_delayed_work(&conn->disc_work); 805 queue_delayed_work(conn->hdev->workqueue, 806 &conn->disc_work, timeo); 807 } 808 } 809 810 /* ----- HCI Devices ----- */ 811 static inline void hci_dev_put(struct hci_dev *d) 812 { 813 BT_DBG("%s orig refcnt %d", d->name, 814 atomic_read(&d->dev.kobj.kref.refcount)); 815 816 put_device(&d->dev); 817 } 818 819 static inline struct hci_dev *hci_dev_hold(struct hci_dev *d) 820 { 821 BT_DBG("%s orig refcnt %d", d->name, 822 atomic_read(&d->dev.kobj.kref.refcount)); 823 824 get_device(&d->dev); 825 return d; 826 } 827 828 #define hci_dev_lock(d) mutex_lock(&d->lock) 829 #define hci_dev_unlock(d) mutex_unlock(&d->lock) 830 831 #define to_hci_dev(d) container_of(d, struct hci_dev, dev) 832 #define to_hci_conn(c) container_of(c, struct hci_conn, dev) 833 834 static inline void *hci_get_drvdata(struct hci_dev *hdev) 835 { 836 return dev_get_drvdata(&hdev->dev); 837 } 838 839 static inline void hci_set_drvdata(struct hci_dev *hdev, void *data) 840 { 841 dev_set_drvdata(&hdev->dev, data); 842 } 843 844 struct hci_dev *hci_dev_get(int index); 845 struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src); 846 847 struct hci_dev *hci_alloc_dev(void); 848 void hci_free_dev(struct hci_dev *hdev); 849 int hci_register_dev(struct hci_dev *hdev); 850 void hci_unregister_dev(struct hci_dev *hdev); 851 int hci_suspend_dev(struct hci_dev *hdev); 852 int hci_resume_dev(struct hci_dev *hdev); 853 int hci_dev_open(__u16 dev); 854 int hci_dev_close(__u16 dev); 855 int hci_dev_reset(__u16 dev); 856 int hci_dev_reset_stat(__u16 dev); 857 int hci_dev_cmd(unsigned int cmd, void __user *arg); 858 int hci_get_dev_list(void __user *arg); 859 int hci_get_dev_info(void __user *arg); 860 int hci_get_conn_list(void __user *arg); 861 int hci_get_conn_info(struct hci_dev *hdev, void __user *arg); 862 int hci_get_auth_info(struct hci_dev *hdev, void __user *arg); 863 int hci_inquiry(void __user *arg); 864 865 struct bdaddr_list *hci_bdaddr_list_lookup(struct list_head *list, 866 bdaddr_t *bdaddr, u8 type); 867 int hci_bdaddr_list_add(struct list_head *list, bdaddr_t *bdaddr, u8 type); 868 int hci_bdaddr_list_del(struct list_head *list, bdaddr_t *bdaddr, u8 type); 869 void hci_bdaddr_list_clear(struct list_head *list); 870 871 struct hci_conn_params *hci_conn_params_lookup(struct hci_dev *hdev, 872 bdaddr_t *addr, u8 addr_type); 873 struct hci_conn_params *hci_conn_params_add(struct hci_dev *hdev, 874 bdaddr_t *addr, u8 addr_type); 875 int hci_conn_params_set(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type, 876 u8 auto_connect); 877 void hci_conn_params_del(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type); 878 void hci_conn_params_clear_all(struct hci_dev *hdev); 879 void hci_conn_params_clear_disabled(struct hci_dev *hdev); 880 881 struct hci_conn_params *hci_pend_le_action_lookup(struct list_head *list, 882 bdaddr_t *addr, 883 u8 addr_type); 884 885 void hci_update_background_scan(struct hci_dev *hdev); 886 887 void hci_uuids_clear(struct hci_dev *hdev); 888 889 void hci_link_keys_clear(struct hci_dev *hdev); 890 struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr); 891 struct link_key *hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, 892 bdaddr_t *bdaddr, u8 *val, u8 type, 893 u8 pin_len, bool *persistent); 894 struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, __le16 ediv, __le64 rand, 895 u8 role); 896 struct smp_ltk *hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, 897 u8 addr_type, u8 type, u8 authenticated, 898 u8 tk[16], u8 enc_size, __le16 ediv, __le64 rand); 899 struct smp_ltk *hci_find_ltk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr, 900 u8 addr_type, u8 role); 901 int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 bdaddr_type); 902 void hci_smp_ltks_clear(struct hci_dev *hdev); 903 int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr); 904 905 struct smp_irk *hci_find_irk_by_rpa(struct hci_dev *hdev, bdaddr_t *rpa); 906 struct smp_irk *hci_find_irk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr, 907 u8 addr_type); 908 struct smp_irk *hci_add_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, 909 u8 addr_type, u8 val[16], bdaddr_t *rpa); 910 void hci_remove_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type); 911 void hci_smp_irks_clear(struct hci_dev *hdev); 912 913 void hci_remote_oob_data_clear(struct hci_dev *hdev); 914 struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev, 915 bdaddr_t *bdaddr); 916 int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, 917 u8 *hash, u8 *randomizer); 918 int hci_add_remote_oob_ext_data(struct hci_dev *hdev, bdaddr_t *bdaddr, 919 u8 *hash192, u8 *randomizer192, 920 u8 *hash256, u8 *randomizer256); 921 int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr); 922 923 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb); 924 925 int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb); 926 int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count); 927 int hci_recv_stream_fragment(struct hci_dev *hdev, void *data, int count); 928 929 void hci_init_sysfs(struct hci_dev *hdev); 930 void hci_conn_init_sysfs(struct hci_conn *conn); 931 void hci_conn_add_sysfs(struct hci_conn *conn); 932 void hci_conn_del_sysfs(struct hci_conn *conn); 933 934 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->dev.parent = (pdev)) 935 936 /* ----- LMP capabilities ----- */ 937 #define lmp_encrypt_capable(dev) ((dev)->features[0][0] & LMP_ENCRYPT) 938 #define lmp_rswitch_capable(dev) ((dev)->features[0][0] & LMP_RSWITCH) 939 #define lmp_hold_capable(dev) ((dev)->features[0][0] & LMP_HOLD) 940 #define lmp_sniff_capable(dev) ((dev)->features[0][0] & LMP_SNIFF) 941 #define lmp_park_capable(dev) ((dev)->features[0][1] & LMP_PARK) 942 #define lmp_inq_rssi_capable(dev) ((dev)->features[0][3] & LMP_RSSI_INQ) 943 #define lmp_esco_capable(dev) ((dev)->features[0][3] & LMP_ESCO) 944 #define lmp_bredr_capable(dev) (!((dev)->features[0][4] & LMP_NO_BREDR)) 945 #define lmp_le_capable(dev) ((dev)->features[0][4] & LMP_LE) 946 #define lmp_sniffsubr_capable(dev) ((dev)->features[0][5] & LMP_SNIFF_SUBR) 947 #define lmp_pause_enc_capable(dev) ((dev)->features[0][5] & LMP_PAUSE_ENC) 948 #define lmp_ext_inq_capable(dev) ((dev)->features[0][6] & LMP_EXT_INQ) 949 #define lmp_le_br_capable(dev) (!!((dev)->features[0][6] & LMP_SIMUL_LE_BR)) 950 #define lmp_ssp_capable(dev) ((dev)->features[0][6] & LMP_SIMPLE_PAIR) 951 #define lmp_no_flush_capable(dev) ((dev)->features[0][6] & LMP_NO_FLUSH) 952 #define lmp_lsto_capable(dev) ((dev)->features[0][7] & LMP_LSTO) 953 #define lmp_inq_tx_pwr_capable(dev) ((dev)->features[0][7] & LMP_INQ_TX_PWR) 954 #define lmp_ext_feat_capable(dev) ((dev)->features[0][7] & LMP_EXTFEATURES) 955 #define lmp_transp_capable(dev) ((dev)->features[0][2] & LMP_TRANSPARENT) 956 957 /* ----- Extended LMP capabilities ----- */ 958 #define lmp_csb_master_capable(dev) ((dev)->features[2][0] & LMP_CSB_MASTER) 959 #define lmp_csb_slave_capable(dev) ((dev)->features[2][0] & LMP_CSB_SLAVE) 960 #define lmp_sync_train_capable(dev) ((dev)->features[2][0] & LMP_SYNC_TRAIN) 961 #define lmp_sync_scan_capable(dev) ((dev)->features[2][0] & LMP_SYNC_SCAN) 962 #define lmp_sc_capable(dev) ((dev)->features[2][1] & LMP_SC) 963 #define lmp_ping_capable(dev) ((dev)->features[2][1] & LMP_PING) 964 965 /* ----- Host capabilities ----- */ 966 #define lmp_host_ssp_capable(dev) ((dev)->features[1][0] & LMP_HOST_SSP) 967 #define lmp_host_sc_capable(dev) ((dev)->features[1][0] & LMP_HOST_SC) 968 #define lmp_host_le_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE)) 969 #define lmp_host_le_br_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE_BREDR)) 970 971 /* ----- HCI protocols ----- */ 972 #define HCI_PROTO_DEFER 0x01 973 974 static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, 975 __u8 type, __u8 *flags) 976 { 977 switch (type) { 978 case ACL_LINK: 979 return l2cap_connect_ind(hdev, bdaddr); 980 981 case SCO_LINK: 982 case ESCO_LINK: 983 return sco_connect_ind(hdev, bdaddr, flags); 984 985 default: 986 BT_ERR("unknown link type %d", type); 987 return -EINVAL; 988 } 989 } 990 991 static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status) 992 { 993 switch (conn->type) { 994 case ACL_LINK: 995 case LE_LINK: 996 l2cap_connect_cfm(conn, status); 997 break; 998 999 case SCO_LINK: 1000 case ESCO_LINK: 1001 sco_connect_cfm(conn, status); 1002 break; 1003 1004 default: 1005 BT_ERR("unknown link type %d", conn->type); 1006 break; 1007 } 1008 1009 if (conn->connect_cfm_cb) 1010 conn->connect_cfm_cb(conn, status); 1011 } 1012 1013 static inline int hci_proto_disconn_ind(struct hci_conn *conn) 1014 { 1015 if (conn->type != ACL_LINK && conn->type != LE_LINK) 1016 return HCI_ERROR_REMOTE_USER_TERM; 1017 1018 return l2cap_disconn_ind(conn); 1019 } 1020 1021 static inline void hci_proto_disconn_cfm(struct hci_conn *conn, __u8 reason) 1022 { 1023 switch (conn->type) { 1024 case ACL_LINK: 1025 case LE_LINK: 1026 l2cap_disconn_cfm(conn, reason); 1027 break; 1028 1029 case SCO_LINK: 1030 case ESCO_LINK: 1031 sco_disconn_cfm(conn, reason); 1032 break; 1033 1034 /* L2CAP would be handled for BREDR chan */ 1035 case AMP_LINK: 1036 break; 1037 1038 default: 1039 BT_ERR("unknown link type %d", conn->type); 1040 break; 1041 } 1042 1043 if (conn->disconn_cfm_cb) 1044 conn->disconn_cfm_cb(conn, reason); 1045 } 1046 1047 static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status) 1048 { 1049 __u8 encrypt; 1050 1051 if (conn->type != ACL_LINK && conn->type != LE_LINK) 1052 return; 1053 1054 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) 1055 return; 1056 1057 encrypt = test_bit(HCI_CONN_ENCRYPT, &conn->flags) ? 0x01 : 0x00; 1058 l2cap_security_cfm(conn, status, encrypt); 1059 1060 if (conn->security_cfm_cb) 1061 conn->security_cfm_cb(conn, status); 1062 } 1063 1064 static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status, 1065 __u8 encrypt) 1066 { 1067 if (conn->type != ACL_LINK && conn->type != LE_LINK) 1068 return; 1069 1070 l2cap_security_cfm(conn, status, encrypt); 1071 1072 if (conn->security_cfm_cb) 1073 conn->security_cfm_cb(conn, status); 1074 } 1075 1076 /* ----- HCI callbacks ----- */ 1077 struct hci_cb { 1078 struct list_head list; 1079 1080 char *name; 1081 1082 void (*security_cfm) (struct hci_conn *conn, __u8 status, 1083 __u8 encrypt); 1084 void (*key_change_cfm) (struct hci_conn *conn, __u8 status); 1085 void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role); 1086 }; 1087 1088 static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status) 1089 { 1090 struct hci_cb *cb; 1091 __u8 encrypt; 1092 1093 hci_proto_auth_cfm(conn, status); 1094 1095 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) 1096 return; 1097 1098 encrypt = test_bit(HCI_CONN_ENCRYPT, &conn->flags) ? 0x01 : 0x00; 1099 1100 read_lock(&hci_cb_list_lock); 1101 list_for_each_entry(cb, &hci_cb_list, list) { 1102 if (cb->security_cfm) 1103 cb->security_cfm(conn, status, encrypt); 1104 } 1105 read_unlock(&hci_cb_list_lock); 1106 } 1107 1108 static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status, 1109 __u8 encrypt) 1110 { 1111 struct hci_cb *cb; 1112 1113 if (conn->sec_level == BT_SECURITY_SDP) 1114 conn->sec_level = BT_SECURITY_LOW; 1115 1116 if (conn->pending_sec_level > conn->sec_level) 1117 conn->sec_level = conn->pending_sec_level; 1118 1119 hci_proto_encrypt_cfm(conn, status, encrypt); 1120 1121 read_lock(&hci_cb_list_lock); 1122 list_for_each_entry(cb, &hci_cb_list, list) { 1123 if (cb->security_cfm) 1124 cb->security_cfm(conn, status, encrypt); 1125 } 1126 read_unlock(&hci_cb_list_lock); 1127 } 1128 1129 static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status) 1130 { 1131 struct hci_cb *cb; 1132 1133 read_lock(&hci_cb_list_lock); 1134 list_for_each_entry(cb, &hci_cb_list, list) { 1135 if (cb->key_change_cfm) 1136 cb->key_change_cfm(conn, status); 1137 } 1138 read_unlock(&hci_cb_list_lock); 1139 } 1140 1141 static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status, 1142 __u8 role) 1143 { 1144 struct hci_cb *cb; 1145 1146 read_lock(&hci_cb_list_lock); 1147 list_for_each_entry(cb, &hci_cb_list, list) { 1148 if (cb->role_switch_cfm) 1149 cb->role_switch_cfm(conn, status, role); 1150 } 1151 read_unlock(&hci_cb_list_lock); 1152 } 1153 1154 static inline bool eir_has_data_type(u8 *data, size_t data_len, u8 type) 1155 { 1156 size_t parsed = 0; 1157 1158 if (data_len < 2) 1159 return false; 1160 1161 while (parsed < data_len - 1) { 1162 u8 field_len = data[0]; 1163 1164 if (field_len == 0) 1165 break; 1166 1167 parsed += field_len + 1; 1168 1169 if (parsed > data_len) 1170 break; 1171 1172 if (data[1] == type) 1173 return true; 1174 1175 data += field_len + 1; 1176 } 1177 1178 return false; 1179 } 1180 1181 static inline bool hci_bdaddr_is_rpa(bdaddr_t *bdaddr, u8 addr_type) 1182 { 1183 if (addr_type != ADDR_LE_DEV_RANDOM) 1184 return false; 1185 1186 if ((bdaddr->b[5] & 0xc0) == 0x40) 1187 return true; 1188 1189 return false; 1190 } 1191 1192 static inline bool hci_is_identity_address(bdaddr_t *addr, u8 addr_type) 1193 { 1194 if (addr_type == ADDR_LE_DEV_PUBLIC) 1195 return true; 1196 1197 /* Check for Random Static address type */ 1198 if ((addr->b[5] & 0xc0) == 0xc0) 1199 return true; 1200 1201 return false; 1202 } 1203 1204 static inline struct smp_irk *hci_get_irk(struct hci_dev *hdev, 1205 bdaddr_t *bdaddr, u8 addr_type) 1206 { 1207 if (!hci_bdaddr_is_rpa(bdaddr, addr_type)) 1208 return NULL; 1209 1210 return hci_find_irk_by_rpa(hdev, bdaddr); 1211 } 1212 1213 static inline int hci_check_conn_params(u16 min, u16 max, u16 latency, 1214 u16 to_multiplier) 1215 { 1216 u16 max_latency; 1217 1218 if (min > max || min < 6 || max > 3200) 1219 return -EINVAL; 1220 1221 if (to_multiplier < 10 || to_multiplier > 3200) 1222 return -EINVAL; 1223 1224 if (max >= to_multiplier * 8) 1225 return -EINVAL; 1226 1227 max_latency = (to_multiplier * 8 / max) - 1; 1228 if (latency > 499 || latency > max_latency) 1229 return -EINVAL; 1230 1231 return 0; 1232 } 1233 1234 int hci_register_cb(struct hci_cb *hcb); 1235 int hci_unregister_cb(struct hci_cb *hcb); 1236 1237 struct hci_request { 1238 struct hci_dev *hdev; 1239 struct sk_buff_head cmd_q; 1240 1241 /* If something goes wrong when building the HCI request, the error 1242 * value is stored in this field. 1243 */ 1244 int err; 1245 }; 1246 1247 void hci_req_init(struct hci_request *req, struct hci_dev *hdev); 1248 int hci_req_run(struct hci_request *req, hci_req_complete_t complete); 1249 void hci_req_add(struct hci_request *req, u16 opcode, u32 plen, 1250 const void *param); 1251 void hci_req_add_ev(struct hci_request *req, u16 opcode, u32 plen, 1252 const void *param, u8 event); 1253 void hci_req_cmd_complete(struct hci_dev *hdev, u16 opcode, u8 status); 1254 bool hci_req_pending(struct hci_dev *hdev); 1255 1256 void hci_req_add_le_scan_disable(struct hci_request *req); 1257 void hci_req_add_le_passive_scan(struct hci_request *req); 1258 1259 struct sk_buff *__hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen, 1260 const void *param, u32 timeout); 1261 struct sk_buff *__hci_cmd_sync_ev(struct hci_dev *hdev, u16 opcode, u32 plen, 1262 const void *param, u8 event, u32 timeout); 1263 1264 int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, 1265 const void *param); 1266 void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags); 1267 void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb); 1268 1269 void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode); 1270 1271 /* ----- HCI Sockets ----- */ 1272 void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb); 1273 void hci_send_to_control(struct sk_buff *skb, struct sock *skip_sk); 1274 void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb); 1275 1276 void hci_sock_dev_event(struct hci_dev *hdev, int event); 1277 1278 /* Management interface */ 1279 #define DISCOV_TYPE_BREDR (BIT(BDADDR_BREDR)) 1280 #define DISCOV_TYPE_LE (BIT(BDADDR_LE_PUBLIC) | \ 1281 BIT(BDADDR_LE_RANDOM)) 1282 #define DISCOV_TYPE_INTERLEAVED (BIT(BDADDR_BREDR) | \ 1283 BIT(BDADDR_LE_PUBLIC) | \ 1284 BIT(BDADDR_LE_RANDOM)) 1285 1286 /* These LE scan and inquiry parameters were chosen according to LE General 1287 * Discovery Procedure specification. 1288 */ 1289 #define DISCOV_LE_SCAN_WIN 0x12 1290 #define DISCOV_LE_SCAN_INT 0x12 1291 #define DISCOV_LE_TIMEOUT 10240 /* msec */ 1292 #define DISCOV_INTERLEAVED_TIMEOUT 5120 /* msec */ 1293 #define DISCOV_INTERLEAVED_INQUIRY_LEN 0x04 1294 #define DISCOV_BREDR_INQUIRY_LEN 0x08 1295 1296 int mgmt_control(struct sock *sk, struct msghdr *msg, size_t len); 1297 int mgmt_new_settings(struct hci_dev *hdev); 1298 void mgmt_index_added(struct hci_dev *hdev); 1299 void mgmt_index_removed(struct hci_dev *hdev); 1300 void mgmt_set_powered_failed(struct hci_dev *hdev, int err); 1301 int mgmt_powered(struct hci_dev *hdev, u8 powered); 1302 int mgmt_update_adv_data(struct hci_dev *hdev); 1303 void mgmt_discoverable_timeout(struct hci_dev *hdev); 1304 void mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key, 1305 bool persistent); 1306 void mgmt_device_connected(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, 1307 u8 addr_type, u32 flags, u8 *name, u8 name_len, 1308 u8 *dev_class); 1309 void mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr, 1310 u8 link_type, u8 addr_type, u8 reason, 1311 bool mgmt_connected); 1312 void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, 1313 u8 link_type, u8 addr_type, u8 status); 1314 void mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, 1315 u8 addr_type, u8 status); 1316 void mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure); 1317 void mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 1318 u8 status); 1319 void mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 1320 u8 status); 1321 int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr, 1322 u8 link_type, u8 addr_type, u32 value, 1323 u8 confirm_hint); 1324 int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 1325 u8 link_type, u8 addr_type, u8 status); 1326 int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 1327 u8 link_type, u8 addr_type, u8 status); 1328 int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr, 1329 u8 link_type, u8 addr_type); 1330 int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 1331 u8 link_type, u8 addr_type, u8 status); 1332 int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 1333 u8 link_type, u8 addr_type, u8 status); 1334 int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr, 1335 u8 link_type, u8 addr_type, u32 passkey, 1336 u8 entered); 1337 void mgmt_auth_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, 1338 u8 addr_type, u8 status); 1339 void mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status); 1340 void mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status); 1341 void mgmt_sc_enable_complete(struct hci_dev *hdev, u8 enable, u8 status); 1342 void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class, 1343 u8 status); 1344 void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status); 1345 void mgmt_read_local_oob_data_complete(struct hci_dev *hdev, u8 *hash192, 1346 u8 *randomizer192, u8 *hash256, 1347 u8 *randomizer256, u8 status); 1348 void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, 1349 u8 addr_type, u8 *dev_class, s8 rssi, u32 flags, 1350 u8 *eir, u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len); 1351 void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, 1352 u8 addr_type, s8 rssi, u8 *name, u8 name_len); 1353 void mgmt_discovering(struct hci_dev *hdev, u8 discovering); 1354 void mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, bool persistent); 1355 void mgmt_new_irk(struct hci_dev *hdev, struct smp_irk *irk); 1356 void mgmt_new_csrk(struct hci_dev *hdev, struct smp_csrk *csrk, 1357 bool persistent); 1358 void mgmt_new_conn_param(struct hci_dev *hdev, bdaddr_t *bdaddr, 1359 u8 bdaddr_type, u8 store_hint, u16 min_interval, 1360 u16 max_interval, u16 latency, u16 timeout); 1361 void mgmt_reenable_advertising(struct hci_dev *hdev); 1362 void mgmt_smp_complete(struct hci_conn *conn, bool complete); 1363 1364 u8 hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max, u16 latency, 1365 u16 to_multiplier); 1366 void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __le64 rand, 1367 __u8 ltk[16]); 1368 1369 int hci_update_random_address(struct hci_request *req, bool require_privacy, 1370 u8 *own_addr_type); 1371 void hci_copy_identity_address(struct hci_dev *hdev, bdaddr_t *bdaddr, 1372 u8 *bdaddr_type); 1373 1374 #define SCO_AIRMODE_MASK 0x0003 1375 #define SCO_AIRMODE_CVSD 0x0000 1376 #define SCO_AIRMODE_TRANSP 0x0003 1377 1378 #endif /* __HCI_CORE_H */ 1379